Question 8 of This question 1 point s In a random sample of 28 families the average weekly food expense was 95 60 with a standard deviation of 22 50 Determine whether a normal distribution or a t distribution should be used or whe neither of these can be used to construct a confidence interval Assume the distribution of weekly food expenses is normally shaped OA Use normal distribution B Cannot use normal distribution or t distribution OC Use the t distribution